Nortel Communication Server 1000 Manual page 186

186 IDA status check and start-up
Link reset error messages
When certain faults are detected, the DCHI is reset. This involves taking
the link out of service (so that the DCHI is disabled) and then bringing it
back into service. This sequence may fail, leaving the link disabled or idle.
The failure messages described in
186)
Table 104
Link reset messages
Code
DTM320 n c
Channel reset error messages
A channel may be reset if there is difficulty in clearing a call, each time that
a channel is enabled, if the channel buffer on the DCHI card overflows.
If a channel is disabled, any call in progress is force-disconnected, and
the DCHI is instructed to reset the associated Link Access Protocol. The
channel is enabled when the reset is completed.
A channel reset may also be initiated by the DCHI, if there is difficulty in
communicating with the far end.
If the number of channel resets since midnight exceeds the value defined
as the "channel reset threshold" (CRT) defined in LD 74, then the link is
reset and a minor alarm is raised. CRT may be set to infinity, in which
case the link will not be reset due to channel reset failure.
The error messages may be generated for a channel reset as described in
Table 105 "Channel reset error messages" (page
Table 105
Channel reset error messages
Code
DTM325 n
DTM326 n
Stop count error message
A count is kept of the number of times since midnight that a link is stopped
due to an alarm or link reset. If this count exceeds the "stop count
threshold" (SCT) defined in LD 74, then the link is disabled. It remains
disabled until it is manually brought back to service. SCT may be set to
infinity, in which case the link will not be reset due to excessive stopping.
may be generated for a link reset.
Description
Real channel c on DTSL/DDSL n has failed to reset and
remains in the disabled state
Description
DTSL/DDSL n is being reset
DTSL/DDSL n has been reset
Nortel Communication Server 1000
DASS2 Fundamentals
NN43001-571 04.01 4 June 2010
Copyright © 2007-2010 Nortel Networks. All Rights Reserved.
Table 104 "Link reset messages" (page
186).